Trump transition live updates: Trump considering lawyer for deputy AG, sources say

Florida Rep. Matt Gaetz, Trump's pick for attorney general, offered his resignation from Congress earlier Wednesday -- effective immediately, House Speaker Mike Johnson announced.

Johnson said the resignation took him by "surprise" but that the Florida congressman did so to "start the clock" on the process for Florida Gov. Ron DeSantis to call a special election to fill his vacancy.

"We're grateful for that so we move forward," Johnson said.

The move slims the new House GOP majority.

Johnson did not weigh in on the House Ethics Committee probe into Gaetz that will now cease with no report released, as Gaetz is no longer a member of Congress.

-ABC News' Lauren Peller and Isabella Murray

Trump has nominated Florida Rep. Matt Gaetz to be his attorney general, he posted on his social media.

Gaetz was seen traveling with Trump in the motorcade Wednesday during the president-elect's visit to Washington, D.C.

The role is a Senate-confirmed appointment.

Trump called Gaetz a "deeply gifted and tenacious attorney" who will "end Weaponized Government, protect our Borders, dismantle Criminal Organizations and restore Americans’ badly-shattered Faith and Confidence in the Justice Department."

Gaetz is an explosive selection by Trump to be the chief law enforcement officer of the federal government, leading the very same executive branch of government that spent years investigating allegations regarding the Florida congressman. Gaetz was informed that the DOJ would not seek charges just last year. He has long denied any wrongdoing.

Gaetz faces an ongoing probe by the House Ethics Committee for the same allegations, related to sex trafficking and obstruction of justice.

Gaetz has been down in Mar-a-Lago almost daily since Election Day, helping make suggestions and input on other administration selections, sources told ABC News.

-ABC News' Will Steakin

Trump announced that former Rep. Tulsi Gabbard is his pick for director of national intelligence.

"I know Tulsi will bring the fearless spirit that has defined her illustrious career to our Intelligence Community, championing our Constitutional Rights, and securing Peace through Strength," Trump said in a statement.

The role is a Senate-confirmed appointment.

Gabbard, who once ran for president as a Democrat, had a prominent role as part of Trump's 2024 campaign team.

Trump has officially announced Florida Sen. Marco Rubio as his nomination for secretary of state.

"Marco is a Highly Respected Leader, and a very powerful Voice for Freedom," Trump said in a statement. "He will be a strong Advocate for our Nation, a true friend to our Allies, and a fearless Warrior who will never back down to our adversaries."

The role must be confirmed by the Senate.